/*
 * FreeRTOS V202212.00
 * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * https://www.FreeRTOS.org
 * https://github.com/FreeRTOS
 *
 */

    RSEG    CODE:CODE(2)
    THUMB

    EXTERN ulRegisterTest1Counter
    EXTERN ulRegisterTest2Counter

    PUBLIC vRegisterTest1Task
    PUBLIC vRegisterTest2Task

/*-----------------------------------------------------------*/

vRegisterTest1Task
    /* Fill the core registers with known values.  This is only done once. */
    movs r1, #101
    movs r2, #102
    movs r3, #103
    movs r4, #104
    movs r5, #105
    movs r6, #106
    movs r7, #107
    movs r0, #108
    mov	 r8, r0
    movs r0, #109
    mov  r9, r0
    movs r0, #110
    mov	 r10, r0
    movs r0, #111
    mov	 r11, r0
    movs r0, #112
    mov  r12, r0
    movs r0, #100

reg1_loop
    /* Repeatedly check that each register still contains the value written to
    it when the task started. */
    cmp	r0, #100
    bne	reg1_error_loop
    cmp	r1, #101
    bne	reg1_error_loop
    cmp	r2, #102
    bne	reg1_error_loop
    cmp r3, #103
    bne	reg1_error_loop
    cmp	r4, #104
    bne	reg1_error_loop
    cmp	r5, #105
    bne	reg1_error_loop
    cmp	r6, #106
    bne	reg1_error_loop
    cmp	r7, #107
    bne	reg1_error_loop
    movs r0, #108
    cmp	r8, r0
    bne	reg1_error_loop
    movs r0, #109
    cmp	r9, r0
    bne	reg1_error_loop
    movs r0, #110
    cmp	r10, r0
    bne	reg1_error_loop
    movs r0, #111
    cmp	r11, r0
    bne	reg1_error_loop
    movs r0, #112
    cmp	r12, r0
    bne	reg1_error_loop

    /* Everything passed, increment the loop counter. */
    push { r1 }
    ldr	r0, =ulRegisterTest1Counter
    ldr r1, [r0]
    adds r1, r1, #1
    str r1, [r0]
    pop { r1 }

    /* Start again. */
    movs r0, #100
    b reg1_loop

reg1_error_loop
    /* If this line is hit then there was an error in a core register value.
    The loop ensures the loop counter stops incrementing. */
    b reg1_error_loop
    nop
/*-----------------------------------------------------------*/

vRegisterTest2Task

    /* Fill the core registers with known values.  This is only done once. */
    movs r1, #1
    movs r2, #2
    movs r3, #3
    movs r4, #4
    movs r5, #5
    movs r6, #6
    movs r7, #7
    movs r0, #8
    mov	r8, r0
    movs r0, #9
    mov r9, r0
    movs r0, #10
    mov	r10, r0
    movs r0, #11
    mov	r11, r0
    movs r0, #12
    mov r12, r0
    movs r0, #10

reg2_loop
    /* Repeatedly check that each register still contains the value written to
    it when the task started. */
    cmp	r0, #10
    bne	reg2_error_loop
    cmp	r1, #1
    bne	reg2_error_loop
    cmp	r2, #2
    bne	reg2_error_loop
    cmp r3, #3
    bne	reg2_error_loop
    cmp	r4, #4
    bne	reg2_error_loop
    cmp	r5, #5
    bne	reg2_error_loop
    cmp	r6, #6
    bne	reg2_error_loop
    cmp	r7, #7
    bne	reg2_error_loop
    movs r0, #8
    cmp	r8, r0
    bne	reg2_error_loop
    movs r0, #9
    cmp	r9, r0
    bne	reg2_error_loop
    movs r0, #10
    cmp	r10, r0
    bne	reg2_error_loop
    movs r0, #11
    cmp	r11, r0
    bne	reg2_error_loop
    movs r0, #12
    cmp	r12, r0
    bne	reg2_error_loop

    /* Everything passed, increment the loop counter. */
    push { r1 }
    ldr	r0, =ulRegisterTest2Counter
    ldr r1, [r0]
    adds r1, r1, #1
    str r1, [r0]
    pop { r1 }

    /* Start again. */
    movs r0, #10
    b reg2_loop

reg2_error_loop
    /* If this line is hit then there was an error in a core register value.
    The loop ensures the loop counter stops incrementing. */
    b reg2_error_loop
    nop
/*-----------------------------------------------------------*/

    END
/*-----------------------------------------------------------*/
